Feeding mechanism for wrapping-machines.



,flimeane of tile devise described heremand 'Mzo the folding mecheniam f being omitted.

' umili;

iii emmers PATENT Gemini.,

.mum mi' mrcfmeiiecm, ce Les ANGELES,

MEEEE AESIGNELENES, '330 NATIONAL WRAPPING MAHINE GMPALNY, QE CEMLE' CALXFQRNIA, MBIGNH, BY DIERECT ANI) TDM, VIRGNAL, .Fi CXLPRATIUN- WEST VIMGINXA.

efeefme.

.ifiveemmticn ci mitten 'l'eicsm Pawnee@ Jem., 2e. 11913;.

y f'lin all 'wwiie i may Mmmm: Y Ee ii imewii inhet- L, iififimiiieee., e eiieeii of the Unie-iii Sirene, reeiing eje Lee f'ingeiem iii Teile ceimiy of Mie Aegeieei and Siete .ef .Caiifem1ie herve viiiwei/ef new and ueefui ziprevemeiiie iii Feeding Mecha miams for 'Wiepping-iifieeiiieee,es? which Prim feilewing ie e eyecieeiien.

My inveniien reinicie icife'perisieuieriy in :i je, 'wmgcpei' 'feeiiiigig' emiism eegieeieifj ziepaevd te be i iii e Wrapper eiiij '.,ii es, ie iiiueiifeicfwi melde j 'fed @heces from ei? te ille cili ing meehen '.iiie iii-.ethnie ei? feeding epemee eil-i. Cie'zeciiiilile eheete te iziic folding 7"@ mecheliiem me me eimd #fc be eemewiiei miem-min, zie eifen more `then e single eheeb would leeee, et ciieiime. Again if ecme ci? the eiieete er wreppeie en, 'the 4piie were ee ef line if, wmi eeeeeme eeneideiebie time $35 iii repiaeiee; imm in iiie prepei' peeiicri, time eeceeeiming exweeiife care ce the pmt ei the machine oiei'iiiere.

In iii-e herczieiie' described iiiecimnism I lieve endeevoiied te obvieie the abeve'men- 39 tioned faultewiiieh are common -tc ell single sheet feeding :neeciiemieinee and te this end i have piovidei e feeding mechanism whereby. the peper 'imm which the Wrapper@ ere formed may. be fef from e. mii., cut the ref 55 mired size, and -deliverci,automatically to t ie eiding mechanism, provision being mede for M1intermitftentiy feeding the vIgapez strip 'to machine in :in even and positive manner.

I acmmpiish the ebow/e reeif'ed object by illustrated in the accompanying drawings., iii Wi1icli:- Figure 1,- is; ay perspective 'View of my' 4impi'eve feeding meciieiiiem attached t0 .wrapping machine. "Fig 2, ie e plan iew 0i? @le feeding and fcldi'ng mcchamem. of my improved machine. Fig'. 3F is a. side clevation of a Wrappingmehine'shcwing my improved mechanism secured thereto, parts il ,Eiger-,is e transverse solution teken on iii..

Veimiiei member Mi, spiined en eiwit 13.' Member iii 1e pevided with en Minnie? greeve i?" which is edeied te be emgege by the hifurczi'ieii'eild a piveteii shifting-g ievcr i8, te the eppei enel ef which is pivf otcd a eiiifiing redV 'i9 muuted in bearings 20 secured to the iep of iebie il by means of which siieft 13 is? comieeted er ciieccnnccied tc or from peiiey 14e.

Suiiteliy 'machined in iemings to liable top l1 and eppi'oximaeiy ai the centerv theiec is a transversely dispoee paper roll carrying ellaft 2G, upon Winch is mounted an endless mii of suitable Wrapping 'peper 27. This'papef before being rcilecl may be suitably inscribed et proper intervals. 'i Y To flic rem of the paper iuli ie secured to bible l] e. per roi! tension mechanism which previ es; means forincreasing the tensimi on the peper' web :is the rcli diminishes in eine. This mechaniemis prefex'ebiy ccmposed of a lever 29, `pivotailiy mcuned in e caring 30 secured to the table and provided en' one end with a curved bearing face 01',-

perl' hplate 31 adapted to contact with the eryhf roll 27. The outer or 4Longer en Iif .this lever is provided With e curved slot 32 thrcugh which passes-sapin B3 rigidly se- .Hee/a. e mi' 190mg n el@ dimmen- 25 secured cured to the free end of a bifurcated lev'er 34, the other end being pivotally' mounted 1n bearing 36 secured to table 11. Pivotally mounted on the 'ends of' pin 33 is an adjustable weight 35, by means of which a varying tension is maintained on the web of paper- -to feed it smoothly and evenly the feeding. mechanism, which I will now proceed to describe. l A

Mounted in bearings 40 secured to the table and adjacentthe paper rollisa paper' feeding mechanism .41,'which ypreferably consiste of a lower cylindrical feed roll 42', preferably formed'of 'Wood or other similar materlal, andan upper smaller cylindrical feed roll 43 which is mounted in spring actuatedv bearing blocks .44 which are vertically slidable in uideways 45 formed in the upper ends of )caring-40. This upper roll being resiliently 'forced againstthe periphery of the lower roll will furnish'suilcient friction on the movement of the lower roll to force i 4the paper' web forwardly to the severing.

mechanism which "will be" described more particularly hereinafter,

To one end of the shat41carrying the lower roll 4 fis ri dly' secured a ratchet aptedto'beactuated in- .the end of an 474 formed integrally-with an actuating cam 48' whichv is rotativeh1 mounted on tbe'ais of thelower feed roll;

'Cain- 48-isf reerably provided withv a air of open en ed curved earn slots 19in w ich' are adaptedtoperate rollers or pins 50 and the centerthereof ,this llever is pivotally se :posed rod54, a slot in lever 52 providing a means foradjustingthe lever so as to regulate itsv movement. Thelower e'nd of rod 54 is in' piyot-al engagement with' an end of a cam actuated lever 56, the other end being pivotally secured to abearin'g 57 secured to the'. under face of table 11.

Lever 5e is adapter to 'be amate@ b' ,a @am 58 Whlch splined on shaft 13 'an is provided with 'im 'annular groove 59 n`whioh 'the lower'end ofa pivoted forked shifting lever 60 is adaptedto operateflTlie upper end of thielever is pivotally securedto a shifting rod 461 by means fof. which cam 58' is moved longitudinally along lthe drive shaft so as to'throwt-he irregular cam face- 62 into and out of,engage ment with cam actuating 'lever' 56.

When the machine is inoperationand'can 58 is in its-.operative osition on 'shaft 13 its irregular face 62 wi l .contact atintervals 1 Withlever so as to .oscillate'and cause arm to rotate the lower feed roll v4:1l asulleenf distance in the direction indicated Aby tha arrow 4thereon to feed the requisite .length paper through the severing mechanism.

In Fig. 3 of the drawings arm 52 is illuef trat'edinits lowermost position, end cam 49 with its pivote/d dog 46 is m a vsitx'on to feed the' web of paper forwar ly' to the' mechanism, -As arm 52 is forced lupwardly one of the furcations 5l of the lever 52 1s in engagementwith the upper cam slot 49 which will force cam 4 9 orfvardl thed 46 engagingfwith the teeth of rate et 45 an rot-ating it the required distance.' On the ings, one ofthe furcations 51' of saida'rrnl which is in engagement with the lower earnv slot 4-9 will .force cam 48 downwardly, the

pivoted dog 46 being disengaged 1'from the teeth' on ratchet. wheel @t57 thus preventin'g" any rotationA of lower feed roll 41, a'sprin pressed upper feed roll 4.3 furnishin su cient. friction `to pre `is rearwar rotation. By the prov of cam 62' and enabled to accurately deterrnina the leng l onpaper that is being passedA through the cutting mechanism.

, -the irregular face The severing olf-cutting mechanism is pref crably located on' thefoward portion ofthe machine directly in front-of and adjacent tovthe feeding mechanism, and it is preferably composed offen upper and lower cutting blade. [Lower blade 65 is preferably cm- -posed of two sections 66 and 467 which arel secured tofian elevated table top 68 which forms 'a housing for a package folding particularly described in my U. S. Letters t mechanism 70 which I have heretofore more of. pms 71 being in counter-sunk.relation-- witheach of the sections 66 and 6T-so at when the upper blade 73 contacts therewlththey will not form an obstruction. The-lower sections are preferably pressed forwardly-by means of spring actuated pins 74 .which Aare' mounted in recesses 75` formed in the? Upper blade '73 is preferably formednf block 72.

one piece and is of thefconguration as illust-rated in`Figs. l and 5 of the.f'lrawinggs,

the arched' conflguration'of this bladeftovgether with 'theresiliently pressedlower blade enables' me to smoothlyand evenly sever the paper web fed' to it bythe feeding .mechanism It will also preuentthe buokling `of the sheets .whjpb is quite important:-

owng to the-thinness of the paper used, as

when the upper blade descends the outer-ends 'lit cosmo y or springs of the arch ,will contactwith the outer edgesof the web and simultaneously shear the material from its edges to the center thereof. Another import-ant' ubieot of forming the lower blade into sections and providing it. with a resilient boeking and the oroiiiog of the upper biede is; that they will comtaritly Sharpen themoelvee while the mecliine is 4iti operation thus (loing ewoy with the frequent stoppage of the unichine in ortier to remove too duit biiitles tor reshitrpf citing. f i

lllpper bloote *iS-. is preferably mounted ins guicewoys 76 rigidly eecsireti in any suitable mamie-r tothe top of cutting trahie (it, being ectiiete therein by meent@ of rigid arme 7'? which extend, dowiirvixrfily from the iiletle through bearings Wi secured to table (38 ami' are rigidly secured to e cross-head it). This crossiieed io provided with e centrally dis posed aperture 8G Yiii which e. lifting rod 8i :is rigidly scoured, the upper portion of the rod assiog through hearing 82. A 'compression lspring; 'is ititer'iposeti between extentl i 4Shaft 155, its irregular face 85 ranged and timed in relation to cam 58 on.

' purpose of arr-angeli iro @rose-'head Ti? and bearing 82 so ae to torce the opper initile 73 fiowriwarfliywhen itt-has reached the limit of its upward movement.

Lifting roti 8l. io iritermittentiy actuated by 1 lifting cam 81twliieii is rigidly scoured to being the same shaft that it Wili force the outer olado downwarcliy when the requisite length of peper has heeiiieiibetireen the cutting blades.

The' eeverihg nieiftiiiiiem is provirleti et the bottles with :1 troiieverseiy ielil guide 8G which is secret-cti rait of the gliitiewoy Y@ for the guioiiig; or directing' the peper web iaetweeo, the biotic/r It. will be observed from 'the foregoing de scription that -tiy the 'ooifei configuration ami arrangement of the sheariiig Mafiosi am enthc rear oi to the imier i abled at rali times to obtain a pcr'ectshear o the littiiig; meoiieniom heilig so to rroriret' ali timee evenly in cojtmction with the pmper'ifeecling means,

As the folding mecliaiiiiem'iori'os no por ticular piirtof this invention il wiil lot ile scribe it :further their to ifuriiiish fa general the paper,

description of operation in oonjurietion with the paper web advancing mechanism, The elevated table top '138 is preferably pr0- vided with a rectangular opening 87. At one. Side of each longitudinally extending' edge are secured paper guide lingers 88 so that the peper which 'is forced through or beyond the Quitting iiiaeiee 'will be guided into ite pro er positior'i over opening 8K The ot the two guide fingers 88 are connected oy menno of etransversely extendiing niemt'fcr F49 which forms e guide for the .com coperetingr placement of the package on the wrapper., As soon a5 the wrztpper material is severed :i package is placed on the wrapper which carries it downwariy throu 1h the opening 87 where it is engaged by tie various side and end wrapping mechanisms which fold the Wrapper .neatlyrountl the package and deliver it to the operator.

The operation of my machine is as fol lows :Cliitch member 1G is; thrown into en gugement with member -15 secured to the driving pulley which is actuated from. source of power {not shown), and cam is SUS moved into operative engagement with lever 57 which artuetes Ithe paper advancing mech eniszn, andas 'the paper is fed forwardly mtl the roll diminishes; in size the tension on the peper will be properly .rrmintainetiY by the tension mechanism hereinoeforje do scribed. As the' lifting cams on the 'moin shaft are so arranged. in relation to each other they will alternately perform their several functions at the proper interval, thus aliowing a constimt amiveven feed of the materieto the :shearing ble-rie@u It will be observed from the above (lescription that l have protluccai an extremeiy eficient ixiechanism that will /obyiate the troubles usually experienced 'with automotically operatori single sheet peper feeds such "as 'have been heretofore enumerated among the objectsiof this invention.

Having ies-critico my invention, Whetl claim as new sind desire to secure by it-- pivotaily mounted on the exis of seid ratchet Wheel end hitting a log co erating with the teeth of said ratchet who@ a loyer haw ing a. forked extremity ,coperating with said cem to-'rock the same, sii-1d cam having slots, pins carried by the forks o said lever cooperating with seifi slots, and Ineens tor actuating said lever. l EZ. In -a machine o the class described, n feed roller adapted v'to advance the web of paperru ratchet wheel for driving the same, a cam pivotally mounted on the ceritrel axis of said ratchet wlieei1 a. dog carried b said with the teeth o seid ratchet wheel, a ver having a pair of forks, one otsaid forks engaging said cam and aordin means for moving the. same in a for' Ward irection5 the other of said forks' afforing moans for engaging said cam to limit the forward movement thereof, and mcas for rocking said iever.

3. Ina machine oi the class described,m combination, van elongated frame, a supply mounted transversely thereof, a fee roller roller ico @mgm

Wrapping tabe, and means for disconnectmg ath@ drive oi' nudi .vel' frm a pomt .near Sad wi'appmg table.

En witness mais I .claim the fore 0mg I 

